Truck-frame for railway-cars.



No. 706,234. Patented Aug. 5, I902.

J. M. HANSEN. TRUCK FRAME FOR RAILWAY CARS.

Applicatiomfiled Jan. 9, 1902.)

2 Sheets-Shae? I.

(No Model.)

1': NORWS PETERS c'o. PHQTQU'IHCL, WASHINGTON, c.

Patented Aug. 5, I902.

2 Sheets-8heet 2.

J. M. HANSEN. TRUCK FRAME FOB RAILWAY CARS. (Application filed Jan. 9,1902.) (No Model.)

UNTTEE STATES PATENT OFFICE.

JOHN M. HANSEN, OF PITTSBURG, PENNSYLVANIA.

TRUCK-FRAME FOR RAILWAY-CARS.-

SPECIFICATION forming part of Letters Patent N 0. 706,234, dated August5, 1902. Application filed January 9,1902. Serial No. 89,056. (Nomodel.)

T0 at whom, it may concern:

Be it known that I, J OHN M. HANSEN, a citizen of the United States,residing at Pittsburg, in the county of Allegheny and State ofPennsylvania, have invented a certain new and useful Improvement inTruck-Frames for Railway-Cars, (Case 0,) of which the following is afull, clear, and exact description.

This invention, in common with that set forth in a concurrent case,relates to truckframes for railway-cars; and, as in that case so here,the invention has for its object, first, to provide a side in which thesprings may be arranged on the center line of the frame; but, unlike thespecific instance shown in the said concurrent case, the side instead ofbeing, strictly speaking, structuralthat is to say, composed of abuilt-up upper arch-bar and a separate lower arch-bar-has these twoarchbars combined or solid and preferably pressed to shape; and theinvention has for its ob ject, second, to provide a truck-frame in whichthe truck bolster is replaced by a central pivot and side bearings,which latter rest upon roller-bearings carried by the sides.

In carrying out the present invention I also use, as in the concurrentcase, as a fundamental element in the construction of each of the sidesa pair of what for want of a better name may be called channel-beams,comprising in one solid structure the upper and lower arch-bars, andthese beams are brought together at their ends over the journals andspaced apart centrally in order to receive the springs androller-bearings. The sides are united by transverse tie-bars, secured tothe inner members of the arch-bars by suitable plates. These tie-barstake the place of a bolster, and to this end are provided with a socket,which receives a pivotpin depending from the body bolster, and thebody-bolster has side bearings, which are supported upon theroller-bearings in the sides.

Having thus stated the principle of my invention, I will proceed now todescribe the best mode in which I have contemplated applying thatprinciple and then will particularly point out and distinctly claim thepart, improvement, or combination which I claim as my invention.

In the accompanying drawings, illustrating my invention, in the severalfigures of which like parts are similarly designated, Figure 1 is a topplan view of half of a car-truck frame embodying the features of theinvention. Fig. 2 is a side elevation. Fig. 3 is a longitudin al sectionon a larger scale. Fig. 4 is an elevation, and Fig. 5 is an end view,ofthe main roller-bearin g. Fig. 6 shows in elevation and end View thesupporting-rollers for the main roller of the roller-bearing. Fig. 7 isa plan View, and Fig. 8 is a crosssection, showing the retainer for thesupporting-rollers of Fig. 6. Fig. 9 is a half-section and sideelevation, and Fig. 10 is an end elevation, of the rollerbearing base.

Since each side of the frame is constructed alike, the description ofone side will suflice for both. A pair of pressed-steel shapes 1, whichare counterparts, are provided to take the place of the upper and lowerarch-bars, and each of these shapes is an integer by preference, with anupper horizontal flange 2 x and a lower laterally-projecting flange 3,al-

though these flanges may be angles attached to a fiat web, if desired;but for manufacturing purposes it is preferred to make each member withits flange integral, as first described. These members are broughttogether at their ends at over the, journals or axle-boxes, and betweenthese ends and centrally of the side they are spread apart into asubstantially hexagonal form, so that the sides are transversely widerat their center than they are at their ends and are vertically deeper attheir center than at their ends for purposes of strength and to form anadequate receptacle forthe spring-hangers, springs, and rollerbearings.The members 1 thus formed are united by topcover-plates 5, extendingfrom the ends toward the center and riveted to the upper flanges 2.

A U-shaped stirrup 7 is arranged in the spaced-apart portion of theside, transversely thereof, with its flanged upper ends 8 riveted to theflanges of the sides, and within this stirrup and at right anglesthereto is arranged another U-shaped stirrup 9, whose upper flanges 10are riveted to the cover-plates 5, and these two stirrups constitute aspring-pocket. The lower ends of these stirrups are bolted or otherwiseattached to a tie-bar 11, extending from pedestal to pedestal or box tobox,

and thus the stirrups are secured at top and bottom rigidly and sorestrained laterally by one another between the members or beams l.

The springs 12 are arranged within the spring hanger or pocket formed bythese stirrups, and above these springs is placed a base 13, providedwith lugs 14 to enter the springs and center them, and interposedbetween this base and the stirrup 7 are wear-plates or chating-plates15, which may be riveted to the cover-plates along with the rivets thatsecure the stirrup 7 in place. This base has a semicircular cavity 16,within which is arranged a retainer 17 'of grid-like construction andcontaining the cylindrical rollers 18, which constitute supports for themain roller-bearing 19. Of course the wear-plates 15 also serve to takethe end thrust of the grid 17 and roller 19.

The bolster 20 has side bearings 21, which pin 22, which is received ina bottomlesssocket-piece 23, secured by plate 24 to the angle-bars25,which connect the opposite side frames of the truck.

The angle-bars 25 have their upper flanges riveted to plates 26, whichin turn are riveted to the upper flanges of the sides, while theirvertical flanges are riveted to gusset-plates 27, which in turn areriveted to the Webs of the inner members of the sides.

The base 13, as in the concurrent case, has overhanging lips 28 toprevent the upward escape of the retainer; but the retainer has nolateral flanges to interlock with the recesses in the base, as in saidconcurrent case, but instead the retainer is made the full width of thebase and its endwise movement restrained by the chafing-plates orwear-plates 15, which are extended down into the springpocketsuificiently for this purpose.

What I claim is- 1. A truck-frame, having a side composed of twocomplemental members brought together at their ends, and spaced apartcentrally, and in which the upper and lower archbars are in one,substantially as described.

2. A truck-frame, having a side composed of a pair of solidpressed-steel combined upper and lower arch-bars, brought together attheir ends, and spaced apart laterally at their center, a spring pocketarranged in said spaced-apart center, and tie-bars secured by plates tothe inner members of the adjacent sides.

5. A truck-frame, having a side of substan tially the constructiondescribed, provided with a central spring-pocket, a roller-bearingarranged in said pocket above the springs, and chafing-plates interposedbetween the roller-bearing and the spring-pocket.

6. A truck-frame, having aside of substantially the constructiondescribed, provided with a central spring-pocket, a roller-bearingarranged in said pocket above the springs, and chafing-plates interposedbetween the roller-bearing and the spring-pocket, said roller-bearingcomprising a base, having a semicircular cavity,a roller-retainerarranged in said cavity and containing supporting-rollers, and a mainroller arranged upon the supporting-rollers, the several parts of thebearing abutting against the chafing-plates, substantially as described.

7. A truck-frame, having a side composed of a pair of combined upper andlower archbars, brought together at their ends, and spaced apartcentrally between such ends, and a spring-pocket within suchspaced-apart portion.

In testimony whereof I have hereunto set my hand this 7th day ofJanuary, A. D. 1902.

1 JOHN M. HANSEN.

WVitnesses:

CHAS. F. OHUBB, WM. BIERMAN.

